Roger Weller, geology
firstname.lastname@example.org copyright 2017-R.Weller
gold in quartz from California-2
Photo is copyright free only for non-commercial educational uses.
Credit photo to R.Weller/Cochise College and the Natural History Museum.
To see this mineral and other fine mineral specimens,
visit the Natural History Museum,
900 Exposition Blvd., Los Angeles, California 90007